Nintendo will start their own E3 livestream on Tuesday, June 14th at 9am PT, by showning off gameplay of Pokemon Sun and Moon and then going in depth with The Legend of Zelda. The day will then continue with other behind the scenes gameplay and info from Nintendo Treehouse. Then starting off the day on Wednesday, June 15th at 10am PT. there will be a developer Q&A session about Pokemon Go. After that Monster Hunter Generations, Dragon Quest VII: Fragments of the Forgotten Past, Tokyo Mirage Sessions #FE, and more will be showcased by Nintendo Treehouse: Live.
Let us know in the comments what games you think they will show that haven't been announced. I truthfully wouldn't mind a new Yoshi game on my New 3DS or an exclusive New 3DS game.